Attributes . 90MM Bore; 160MM Outside Diameter; 60MM Width; Open; Yes Flush Ground; Ball Bearing; Single Row of Balls; ABEC 1 | ISO P0; No Filling Slot; No Snap Ring; C0-Medium; Phenolic Cage; 15 Degree; 2 (1 Pair); Medium Preload; Duplex-Back to Back Mounting . Names